reverse dns configuration for IPV4, IPV6+ dns+ mail ?
mje at posix.co.za
Sun Jun 18 14:26:46 UTC 2017
Put two reverse records in both the IPv4 and IPv6 reverse zones....
in the "125.124.123.in-addr.arpa" zone:
126 IN PTR mail.xxx.com.
126 IN PTR ns.xxx.com.
and the same sort of thing in the reverse IPv6 zone. To calculate run:-
and see what question dig asks.
Nothing wrong with a machine (or interface on a machine) having more
than one name for the same address. List them all in the reverse
configuration. After all, a NS record usually has at least two records ;-)
On 18/06/2017 15:40, Pierre Couderc wrote:
> Well, we have 2 computers in xxx.com subnet provided by ISP on
> 184.108.40.206 ipV4 address and corresponding IPV6 segment
> mail.xxx.com : 2a01:e34:xxxx:xxxx:xxxx:xxxx:1122:3344 for mail server
> ns.xxx.com : 2a01:e34:xxxx:xxxx:xxxx:xxxx:aabb:ccdd for dns server
> In xxx.com bind :
> mail A 220.127.116.11
> mail AAAA 2a01:e34:xxxx:xxxx:xxxx:xxxx:1122:3344
> ns A 18.104.22.168
> ns AAAA 2a01:e34:xxxx:xxxx:xxxx:xxxx:aabb:ccdd
> What should I put for IPV4 reverse address : if I put mail.xxx.com,
> the reverse address will not point on ns.xxx.com, and if put
> ns.xxx.com, the reverse dns will not point on mail.xxx.com, and I
> shall have mail problem.
> What are the best practices fore thus problem ?
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Mark James ELKINS - Posix Systems - (South) Africa
mje at posix.co.za Tel: +27.128070590 Cell: +27.826010496
For fast, reliable, low cost Internet in ZA: https://ftth.posix.co.za
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